Delete row ('2756', '20272') from daily_volatility

ticker_id 2756
day 20272
implied_open 0.1571576278772367
implied_high 0.1730321357436242
implied_low 0.1396956692242104
implied_close 0.1508078247306817
historical_open 0.1381082184375716
historical_high 0.1381082184375716
historical_low 0.1381082184375716
historical_close 0.1381082184375716
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